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Lab-Grown Marquise Diamond Rings

Discover the unique elegance of lab-grown marquise diamond rings at KAY. Shop stunning and sustainable lab-created marquise diamond engagement rings to anniversary bands that fit your style.
76 Results items returned.
76 Results items returned.
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Neil Lane Artistry Marquise-Cut Lab-Grown Diamond Anniversary Band 3/4 ct tw 14K Yellow Gold

Sale - GET IT BY CHRISTMAS

$849.99 
50% off
Was $1,699.99 
Marquise & Round-Cut Lab-Grown Diamond Deconstructed Ring 1/5 ct tw 10K White Gold

Online Exclusive

$299.99 
40% off
Was $499.99 
Neil Lane Artistry Marquise & Round-Cut Lab-Grown Diamond Anniversary Band 3/4 ct tw 14K White Gold

GET IT BY CHRISTMAS

$1,019.99 
40% off
Was $1,699.99 
Now + Forever Lab-Grown Diamonds Marquise-Cut Solitaire Engagement Ring 2 ct tw 14K Rose Gold (F/SI2) (F/SI2)

Online Exclusive - GET IT BY CHRISTMAS

$2,999.99 
40% off
Was $4,999.99 
Now + Forever Lab-Grown Diamonds Marquise-Cut Solitaire Engagement Ring 1 ct tw 14K Rose Gold (F/SI2)

Online Exclusive - GET IT BY CHRISTMAS

$1,379.99 
40% off
Was $2,299.99 
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Now + Forever Lab-Grown Diamonds Marquise-Cut Solitaire Engagement Ring 1 ct tw 14K Yellow Gold (F/SI2)

GET IT BY CHRISTMAS

$1,379.99 
40% off
Was $2,299.99 
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Now + Forever Lab-Grown Diamonds Marquise-Cut Solitaire Ring 2 ct tw 14K White Gold (F/SI2)

GET IT BY CHRISTMAS

$2,999.99 
40% off
Was $4,999.99 
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Now + Forever Lab-Grown Diamonds Marquise-Cut Solitaire Engagement Ring 1 ct tw 14K White Gold (F/SI2)

GET IT BY CHRISTMAS

$1,379.99 
40% off
Was $2,299.99 
Now + Forever Lab-Grown Diamonds Marquise-Cut Engagement Ring 2 ct tw 14K Rose Gold

Online Exclusive - GET IT BY CHRISTMAS

$2,819.99 
40% off
Was $4,699.99 
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Now + Forever Lab-Grown Diamonds Marquise-Cut Diamond Engagement Ring 1-1/2 ct tw 14K White Gold

GET IT BY CHRISTMAS

$2,099.99 
40% off
Was $3,499.99 
Now + Forever Lab-Grown Diamonds Marquise-Cut Seven-Stone Anniversary Ring 2 ct tw 14K Rose Gold

Online Exclusive - GET IT BY CHRISTMAS

$2,699.99 
40% off
Was $4,499.99 
Monique Lhuillier Bliss Blue & White Lab-Grown Diamond Anniversary Ring 1/3 ct tw 18K White Gold

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$839.99 
40% off
Was $1,399.99 
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Monique Lhuillier Bliss Marquise-Cut Lab-Grown Diamond Engagement Ring 3-7/8 ct tw 18K Two-Tone Gold

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$5,219.99 
40% off
Was $8,699.99 
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Neil Lane Artistry Marquise-Cut Lab-Grown Diamond Double Halo Engagement Ring 2 ct tw 14K White Gold

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$2,519.99 
40% off
Was $4,199.99 
Monique Lhuillier Bliss Marquise-Cut Lab-Grown Diamond Engagement Ring 2-1/2 ct tw 18K Rose Gold

Online Exclusive

$4,139.99 
40% off
Was $6,899.99 
Neil Lane Artistry Pear, Marquise & Round-Cut Lab-Grown Diamond Enhancer Ring 1 ct tw 14K White Gold

Clearance - GET IT BY CHRISTMAS

$1,619.99 
40% off
Was $2,699.99 
Now + Forever Lab-Grown Diamonds Marquise-Cut Solitaire Plus Engagement Ring 3-1/8 ct tw 14K Yellow Gold (F/VS2)

GET IT BY CHRISTMAS

$3,899.99 
40% off
Was $6,499.99 
Neil Lane Artistry Marquise-Cut Lab-Grown Diamond Halo Engagement Ring 2 ct tw 14K White Gold

Clearance - GET IT BY CHRISTMAS

$2,219.99 
40% off
Was $3,699.99 
Monique Lhuillier Bliss Marquise-Cut Pink Lab-Grown Diamond Solitaire Anniversary Ring 1/8 ct tw 18K White Gold

GET IT BY CHRISTMAS

$779.99 
40% off
Was $1,299.99 
Neil Lane Artistry Heritage Marquise-Cut Lab-Grown Diamond Double Halo Engagement Ring 1-5/8 ct tw 14K White Gold

New - GET IT BY CHRISTMAS

$1,919.99 
40% off
Was $3,199.99 
THE LEO Legacy Lab-Grown Diamond Marquise-Cut Engagement Ring 1-1/3 ct tw 14K Yellow Gold

New - GET IT BY CHRISTMAS

$2,339.99 
40% off
Was $3,899.99 
Previously Owned Lab-Grown Diamonds Marquise-Cut Solitaire Ring 2 ct tw 14K White Gold (F/SI2)

Previously Owned Lovingly Restored - GET IT BY CHRISTMAS

$2,999.99 
40% off
Was $4,999.99 
Previously Owned Lab-Grown Diamonds Marquise-Cut Engagement Ring 2 ct tw 14K White Gold

Previously Owned Lovingly Restored - GET IT BY CHRISTMAS

$2,349.99 
50% off
Was $4,699.99 
Previously Owned Neil Lane Artistry Marquise-Cut Lab-Grown Diamond Anniversary Band 3/4 ct tw 14K Yellow Gold

Previously Owned Lovingly Restored - GET IT BY CHRISTMAS

$1,139.99 
40% off
Was $1,899.99 
Previously Owned Neil Lane Artistry Marquise & Round-Cut Lab-Grown Diamond Anniversary Band 1-1/2 ct tw 14K White Gold

Previously Owned Lovingly Restored - GET IT BY CHRISTMAS

$1,679.99 
40% off
Was $2,799.99 
Previously Owned Lab-Grown Diamonds Marquise-Cut Diamond Engagement Ring 1-1/2 ct tw 14K White Gold

Previously Owned Lovingly Restored - GET IT BY CHRISTMAS

$1,979.99 
40% off
Was $3,299.99 
Previously Owned Neil Lane Artistry Marquise-Cut Lab-Grown Diamond Engagement Ring 2 ct tw 14K White Gold

Previously Owned Lovingly Restored - GET IT BY CHRISTMAS

$3,119.99 
40% off
Was $5,199.99 
Previously Owned Neil Lane Artistry Marquise-Cut Lab-Grown Diamond Anniversary Band 3/4 ct tw 14K White Gold

Previously Owned Lovingly Restored - GET IT BY CHRISTMAS

$1,139.99 
40% off
Was $1,899.99 
Previously Owned Neil Lane Artistry Marquise & Round-Cut Lab-Grown Diamond Anniversary Band 3/4 ct tw 14K White Gold

Previously Owned Lovingly Restored - GET IT BY CHRISTMAS

$1,139.99 
40% off
Was $1,899.99 
Now + Forever Marquise-Cut Lab-Grown Diamond Engagement Ring 3-1/2 ct tw 14K Yellow Gold

Online Exclusive - GET IT BY CHRISTMAS

$4,619.99 
40% off
Was $7,699.99 
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Neil Lane Artistry Marquise-Cut Lab-Grown Diamond Engagement Ring 2 ct tw 14K White Gold

GET IT BY CHRISTMAS

$3,179.99 
40% off
Was $5,299.99 
Monique Lhuillier Bliss Marquise-Cut Lab-Grown Diamond Anniversary Ring 1/3 ct tw 18K Yellow Gold

GET IT BY CHRISTMAS

$899.99 
40% off
Was $1,499.99 
STUDIO BY KAY Marquise-Cut Lab-Grown Diamond Solitaire Curve Ring 1/5 ct tw 24K Yellow Gold Vermeil Sterling Silver

New - GET IT BY CHRISTMAS

$149.99 
40% off
Was $249.99 
Neil Lane Artistry Marquise & Round-Cut Lab-Grown Diamond Three-Row Anniversary Ring 1-1/4 ct tw 14K White Gold

Clearance - GET IT BY CHRISTMAS

$1,499.99 
40% off
Was $2,499.99 
Monique Lhuillier Bliss Marquise-Cut Lab-Grown Diamond Engagement Ring 3-3/8 ct tw 18K White Gold

New - GET IT BY CHRISTMAS

$4,859.99 
40% off
Was $8,099.99 
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Now + Forever Lab-Grown Diamonds Marquise-Cut Halo Engagement Ring 3/4 ct tw 14K White Gold

Online Exclusive

$959.99 
40% off
Was $1,599.99 
Monique Lhuillier Bliss Marquise & Round-Cut Lab-Grown Diamond Anniversary Ring 7/8 ct tw 18K White Gold

Clearance - GET IT BY CHRISTMAS

$1,559.99 
40% off
Was $2,599.99 
Neil Lane Artistry Marquise-Cut Lab-Grown Diamond Engagement Ring 2-3/4 ct tw 14K Yellow Gold

New - GET IT BY CHRISTMAS

$4,139.99 
40% off
Was $6,899.99 
Neil Lane Artistry Marquise-Cut Lab-Grown Diamond Engagement Ring 1-7/8 ct tw 14K White Gold

Clearance - GET IT BY CHRISTMAS

$2,219.99 
40% off
Was $3,699.99 
Monique Lhuillier Bliss Marquise-Cut Lab-Grown Diamond Halo Engagement Ring 2 ct tw 18K Yellow Gold

New - GET IT BY CHRISTMAS

$3,059.99 
40% off
Was $5,099.99 
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Now + Forever Lab-Grown Diamonds Marquise-Cut Solitaire Plus Engagement Ring 1-7/8 ct tw 14K Yellow Gold (F/VS2)

GET IT BY CHRISTMAS

$2,339.99 
40% off
Was $3,899.99 
KAY Lab-Grown Diamonds Marquise-Cut Enhancer Ring 3-1/5 ct tw 14K Yellow Gold

New - GET IT BY CHRISTMAS

$2,819.99 
40% off
Was $4,699.99 
Showing 42 of 76 products